I don't really get how Android operates..., but yeah. As long as they're still in system folder, they will come back again (after factory reset) automatically.
In the meanwhile.... My tablet has just arrived!! XD
I just recently switched it on, and when I check the build number on settings..., it turned out to be v1.02(G).
Which means I can't test out today's new update (v1.32) for now. ._.
I am surprised to see that you have received the power charger, few users received it. Please post a photo of it, I need to know the manufacturer code.
I forgot to say, if the tablet works well, remove the film with the attached white tape, under it there is the real glass protector. Enjoy it.